@article{MS2_1953__1_165501,
     author = {Th. SKOLEM},
     title = {Some considerations concerning recursive functions},
     journal = {Mathematica Scandinavica},
     pages = {213--221},
     year = {1953},
     volume = {1},
     zbl = {0052.24803},
     url = {http://geodesic.mathdoc.fr/item/MS2_1953__1_165501/}
}